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SH2-132 (The Lion Nebula), 





    
        

            Randal Healey

SH2-132 (The Lion Nebula)

Technical card

Resolution: 3072x2193

Dates:July 29, 2018July 30, 2018July 31, 2018

Frames:
Astrodon BLUE 36mm - Gen2 E-Series Tru-Balance: 18x300" -10C bin 1x1
Astrodon GREEN 36mm - Gen2 E-Series Tru-Balance: 15x300" -10C bin 1x1
Astrodon HA 36mm - 5nm: 22x600" 10C bin 1x1
Astrodon Olll 36mm - 3nm: 20x600" -10C bin 1x1
Astrodon RED 36mm - Gen2 E-Series Tru-Balance: 16x300" -10C bin 1x1

Integration: 11.1 hours

Darks: ~50

Flats: ~50

Bias: ~65

Avg. Moon age: 17.16 days

Avg. Moon phase: 93.13%

Astrometry.net job: 2353552

Locations: Healey "Utahopia" Observatory, Kaysville, Utah, United States

Data source: Backyard

Description

Combination HOO and RGB Stars

SH2-132 (otherwise known as Sharpless 132)—a large emission nebula located between the border of the Cepheus and Lacerta constellations.
If you’ve never heard of it before, as most haven’t, don’t feel too bad. SH2-132 might be large, but it’s rather faint and obscure; It’s still somewhat easy to find. It lurks in close proximity to three distinct stars—Epsilon, Zeta Cephei and Delta—arranged in a triangle-formation. The nebula is about 1.0 degree from Epsilon, which forms a straight line with SH2-132 and Zeta.

SH2-132’s appears to belong to the Cepheus OB1 association, which also boasts one of the largest known stars in existence: an orange hypergiant known as RW Cephei. It may not, however. There’s a chance they are merely in the same field of view. What’s known is that two objects—Wolf-Rayet stars known as WR 152 and WR 153 respectively—do most of the ionization. Several other OB-type stars are scattered about.

Sh2-132 is located at a distance of almost 3200 parsecs (nearly 10400 light years ), thus placing itself inside the Arm of Perseus.

Comments

Author

RandalHealey
Randal Healey
License: None (All rights reserved)
1595
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Revisions

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  • Final
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Histogram

SH2-132 (The Lion Nebula), 





    
        

            Randal Healey